Sr. Network Engineer / TS/SCI Poly SP / Onsite: Hanover, MD
$95.9k - $178.1kLockheed Martin
Requisition ID: 3942ERP Eligible?: NoERP amount: N/ARelocation: NoType: ExemptShift: 1Clearance Prior to Start: TS/SCI w/Poly SPFinal Clearance: TS/SCI w/Poly SPPay Transparency: $95900.00 - $178100.00Experience Level: Experienced ProfessionalFT/PT/Casual: FullTimeDepartment: Enterprise Business ServicesBusiness Unit: Enterprise Business ServicesStandard Job DescriptionOur employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 people works with partners around the world to bring proven performance to our customers’ toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries.This Enterprise Operations (EO) position supports Lockheed Martin Rotary and Mission Systems (RMS). The selected candidate will be responsible for upgrades, operations and maintenance, hardware and software installations, and service requests (servers, workstations, phones, networking, and storage), as well as continuity of operations. We are seeking a Network Engineer/System Administrator team member to join our team supporting the Hanover and Annapolis Junction. In this fast-paced environment, you'll draw on your education and experience as well as the resources of Lockheed Martin to solve problems and be a contributing member of a highly skilled team. The primary function will be to organize, install, and maintain discrete classified networks.Performs a variety of activities in information systems design, development, and analysis encompassing one or more of the following areas of technical expertise: programming, computer application analysis, software development, systems integration, and related disciplines.Basic Qualifications• Active TS/SCI w/Poly SP Required• U.S. Citizen Required• Current CompTIA Security+ certification or Higher DoD 8572 qualified certificate within the first 60 days of employment (or ability to obtain)• Confident in OSI model, IP addressing and subnetting• Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent exper)• 5+ years of experience in network engineering and IT support.• 2+ years of Windows OS experience• Experience with Risk Management Framework (RMF) Requirements• Ability to multitask in a fast-paced environment.• Self-motivated, able to work independently, and takes initiative.• Outstanding attention to detail.• Excellent verbal, written communication, and negotiations skills.• Excellent problem solving/analytical skills and knowledge of analytical tools.• Demonstrated ability to support, maintain, and administer complex applicationsDesired Skills• Strong understanding of network architecture, protocols, and security principles• General knowledge of DISA STIGs and hardening methods• Experience with configuring and troubleshooting LAN and WAN connections• Experience with classified network environments and familiarity with government security regulations.• Proficiency in managing and troubleshooting Windows and Linux operating systems.• Hands-on experience with network hardware (routers, switches, firewalls).• Excellent problem-solving skills and the ability to work under pressure.• Knowledge of Windows Server and Desktop Operating Systems administration (Windows, 7, 10, 2008, 2012 and 2016)• Knowledge of Virtualization (VMware, Horizon, vSphere, vCenter, vCloud, vRealize, NSX, vSAN or VXRail)• Knowledge of implementing vulnerability compliance solutions (WSUS, SCCM, Splunk, ACAS, SCAP, HBSS, NESSUS)Pay InformationFull-Time Salary Range: $95900.00 - $178100.00At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow—both professionally and personally.The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.
$220k - $260k
Northwest Talent Solutions LLC is seeking a Database Engineer / Oracle DBA for an onsite role in Maryland. The position requires an active TS/SCI with Full Scope Poly and a strong background in Oracle database engineering. You will work on large-scale, highly secure systems...Senior$176k - $282k
...Infrastructure Team is seeking a strong Network Engineering and Systems Engineering background to... ...college or university is required.Active TS/SCI security clearance with current... ...026-166794Position Category: Information TechnologyClearance: Top Secret/SCI w/PolySeniorContract workShift work$146k - $234k
Responsibilities Title: Cloud Software Engineer (TS/SCI w/ Poly)ResponsibilitiesPeraton is seeking a... ...Mission business unit in Annapolis Junction, MD. In this role, you will design, develop... ...solutions.This position is performed onsite at a contractor facility, with telework...SuggestedContract workFor contractorsRemote workShift work$25k
...Description Job Description System Engineer - Computer Network Support - AI/ML - 6+ yrs of Experience - TS/SCI w/Poly Required Halogen... ...Location: Fort Meade, MD Travel Required: No... ...Shift: Day Remote Type: Onsite Security Clearance: Current...SuggestedContract workTemporary workRemote workShift work$136k - $184k
...Position Location: USA MD Annapolis Junction... ...Possess: Top Secret SCI + Polygraph Clearance... ...Description: AZURE CLOUD ENGINEER Cloud Architect will... ...clearance level: TS/SCI w/Poly US citizenship required... ...or AWS) Location: Onsite Annapolis Junction, MD...SuggestedFull timeTemporary workPart timeImmediate startRemote workWorldwideFlexible hours- Northrop Grumman Mission Systems is seeking a Network Engineer 3 to design, implement, and maintain multi‑domain networks across several sites including Annapolis Junction MD, San Antonio TX, Aurora CO, and Carey, NC. The role requires high‑level network engineering, performance...Senior
- ...: 5+ years of related experience ● Security Clearance Level: TS/SCI w/Poly ● Required Skills and Abilities: Proven experience with Azure... ...● Cutting-edge technology you can learn from #MD_2025Alumni #IntelligenceEngineered #Globalservices Work...Relocation package
- MissionEdge Technologies is seeking a Network Engineer to support a key government customer in a... ...primarily office-based environment in Columbia, MD. The base salary range is competitive... ...include U.S. Citizenship, TS/SCI w/ polygraph, Master’s or Bachelor’s with...Work at office
- Optiv + ClearShark is looking for a highly skilled Sr. Splunk Engineer to join our cybersecurity team. The ideal candidate will be responsible... ...tasking.What we’re looking forCurrently holds a TS/SCI with CI polygraph.Security Certification (i.e, Security+, CISSP...SeniorFull timeWork experience placementLocal areaRemote workWork from home
$104k - $166k
...Peraton is seeking a Cloud Software Engineer to support our Cyber Mission... ...in Annapolis Junction, MD. Peraton supports multiple products... ...Qualifications:Active TS/SCI security clearance with a current... ...Category: Information TechnologyClearance: Top Secret/SCI w/PolyContract workFor contractorsFlexible hoursShift work$127.79k - $212.99k
...seeking a Senior Intelligence Program Integrator (TS/SCI CI Poly) to join our team in National Capital Region, Maryland (US-MD), United States (US). Job Duties:... ...Guide identification of systems, mission engineering, and business process inadequacies and deficiencies...SeniorTemporary workWork at officeLocal areaRemote workFlexible hours$104k - $166k
...for national security. As a Cloud Software Engineer, you will design, develop, and maintain... ...#AJCM#MDFSP#PeratonRoyalMoveQualificationsRequired QualificationsActive TS/SCI clearance with a current... ...: 2026-164275Position Category: Information TechnologyClearance: Top Secret/SCI w/PolySeniorContract workFlexible hoursShift work$176.9k - $332.4k
...you looking to make great use of your Network Devices reverse engineering (RE) and vulnerability research (VR)... ...our country.What Skills You'll Bring:TS/SCI w/ Polygraph is required15+ years of... ...please refer to .SummaryLocation: US - MD, Annapolis JunctionType: Full timeFull timeFlexible hours$190k - $304k
ResponsibilitiesPeraton is seeking a Systems Engineer to support our Cyber Mission... ...in Annapolis Junction, MD. The team supports multiple... ...Qualifications:Active TS/SCI clearance with current polygraph... ...Category: Information TechnologyClearance: Top Secret/SCI w/PolySeniorContract workFor contractorsFlexible hoursShift work$131.3k - $237.35k
...exciting opportunity for a Software Engineer in our National Security... ...Engineering, Computer Network Operations (CNO), Mission Software... ...guidanceRequired QualificationsActive TS/SCI clearance with Polygraph up... ...(if any), or other law.SummaryLocation: Hanover, MDType: Full timeSeniorFull timeImmediate startFlexible hours$119.5k - $275k
...leading technology firm in Columbia, MD is seeking a Resident Engineer. This role focuses on the operations and maintenance of data center networks, requiring a deep understanding of routing... ...The successful candidate will have a TS/SCI w/Full Scope Polygraph clearance and...Remote workWork from home- ...as a Senior T est Engineer at GDIT. Shape what’s... ...that help defend Marine networks, identify... ...MARFORCYBER) at Ft. Meade, MD: Provide Software Test... ...Clearance Level: Active TS/SCI with CI Poly Experience: 5+ years... ...degree. Work Location: Onsite in Ft. Meade, MD....Senior
- ...Description Clearance Requirements: TS SCI W Favorable Poly: The years of experience must be in... ...be in Computer Science or Computer Engineering (or something extremely similar) Position... ...are looking for a SAS member for the Network Device team to support development of...
- CyberCore is seeking a Process Engineer 3 in Elkridge, MD. The role focuses on applying process improvement methodologies to enterprise-level processes... ...across multiple projects. Applicant must have active TS/SCI with current polygraph. #J-18808-Ljbffr J&T Business ConsultingSenior
$146k - $234k
Responsibilities Cloud Software Engineer - Cyber Missions TeamLocation: Annapolis Junction... ...experience may be substitutedActive TS/SCI clearance with current polygraphCloud Developer... ...ID: 2026-162547Position Category: EngineeringClearance: Top Secret/SCI w/PolyContract workShift work$176k - $282k
ResponsibilitiesThe team is seeking a Software Engineer to devise strategies to extract meaning... ...databases or data repositoriesA TS/SCI w/Poly is required.Must be willing to obtain... ...data stewardsDemonstrated experience in network metadata processing, manipulation, and...Contract workFlexible hoursShift work- GRVTY is seeking a Senior Software Engineer in Laurel, MD, with TS/SCI + Poly clearance, to develop analytics and tools for compliance and business processing. You will prototype automation functions and test ML/AI algorithms in the RD environment, creating models and...SeniorRemote work
$176k - $282k
ResponsibilitiesPeraton is seeking a Software Engineer to support a suite of web-based... ...ensure operational specifications are met.TS/SCI clearance with polygraph clearance is requiredAdditional... ...: 2026-167192Position Category: Information TechnologyClearance: Top Secret/SCI w/PolySeniorContract workShift work- ...Job Description AZURE CLOUD ENGINEER Cloud Architect will maintain... ...rotation ● Security clearance level: TS/SCI w/Poly ● US citizenship required ● Certification... ...(Azure or AWS) ● Location: Onsite Annapolis Junction, MD GDIT IS YOUR PLACE At GDIT,...
- ...Description Azure Cloud VDI Engineer ** This position is... ...resources (compute, networking, storage, identity) to support... ...clearance level: TS/SCI w/Poly ● US citizenship required... ...certificate ● Location: Onsite Annapolis Junction, MD GDIT IS YOUR PLACE...Relocation package
$176k - $282k
ResponsibilitiesThe Systems Engineer -Splunk Administrator will support... ...Unit in Annapolis Junction, MD. This work is performed at a contractor... ...and leading SystemsActive TS/SCI security clearance with... ...Category: Information TechnologyClearance: Top Secret/SCI w/PolySeniorContract workFor contractorsShift work$103.5k - $181.1k
...passionate about reverse engineering and embedded... ...security customer.Work onsite, fully integrated with... ...Analyze complex systems and networked devicesDiscover novel solutions... ...You'll Bring:Active TS/SCI with Polygraph (required... ....SummaryLocation: US - MD, Annapolis JunctionType...SeniorFull timeFlexible hours- SOC LLC is seeking a Senior Network Engineer for a full-time on-site position in the Ft. Meade, MD area. This role supports a data center network with a TS/SCI/Full Scope Polygraph requirement and involves engineering design, operations, and automated tooling. Candidates...SeniorFull time
- Wyetech is hiring a Network Engineer in Columbia, Maryland, to provide engineering support in network design, maintenance, and incident resolution... ...should possess a Master's degree in a relevant field and a TS/SCI security clearance with an appropriate polygraph. The role...SeniorHourly pay
- ...protect our country from threats. Job Description NETWORK ENGINEER Transform technology into opportunity as a Network Engineer... ...years of related experience ● Security clearance level: TS/SCI w/Poly ● US citizenship required ● Level II 8570 Certification...Local area
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Sr. Network Engineer / TS/SCI Poly SP / Onsite: Hanover, MD. Be the first to apply!
- network engineer - transport Hanover, MD
- network developer Hanover, MD
- senior network engineer remote Hanover, MD
- network engineer Hanover, MD
- data center network engineer Hanover, MD
- network consulting engineer Hanover, MD
- cisco network engineer Hanover, MD
- senior robotics software engineer Hanover, MD
- senior devops engineer remote Hanover, MD
- senior windows systems engineer Hanover, MD

